Cash register



C. W. GREEN CASH REGISTER Feb. 24, 1931.

Filed Dec. 18. 1922 S'SheetS-Sheet l INVENTOR Charla: W Green a ATTORNEYS WITNESS fly? C. W. GREEN CASH REGISTER Feb. 24, 1931.

5 Sheets-Sheet 2 Filed Dec.

Ell-E5 V INVENTOR 5 Charles W reen C. W. GREEN CASH REGISTER Feb. 24, 1931.

Filed Dec. 18. 1922 5 Sheets-Sheet 5 INVENTOR ATTORNEYS Charles W Green Feb. 24, 1931. c. w. GREEN CASH REGISTER Filed Dec. 18, 1922 5 Sheets-Sheet 4 mun- Charles 1. (firm 6H0: ncq

24, 1931. c w EN 1,793,795

1 CASH REGISTER Filed Dec. 18, 1922 5 Sheets-Sheet 5 (liar/a! (1/. Green Q KM iZ ZA 4 attozuaqd Patented eb. 24, 1931 rrEo STATES CHARLES 11V. GREEN, ILIQN, NEW YORK, ASSIGNOR TO REMINGTON ARMS 00M- PANY, INC., A CORPORATION 0F DELAWARE CASH REGISTER.

Application filed December 18, 1922. Serial No. 607,609.

This invention relates to improvements in cash registers and the totalizers used therein and particularly to the transfer or carrying mechanism.

A broad object of the present invention is to provide a suitable mechanism for positively transmitting motion from each adding wheel of a lower order to the addingwheel of next higher order when the lower order adding wheel has completed a full rotation.

More specifically it is an object of the present invention to provide a transfer mechanism comprising a trip pawl acutated by a trip device associated with the wheel of the lower order to set a transfer pawl in its transfer position in order that the latter may be actuated during a regular operation of the machine to advance the wheel of the next higher order one step.

Further objects of the present invention are to prevent accidental displacement of the totalizer wheels when out of engagement with their actuating segments and to preclude the possibility of over-carrying of the total izer wheel when the machine is subjected to improper usage.

- With these and incidental objects in view the invention consists in certain novel features of construction and combination of parts, the essential elements of which are set forth in appended claims, and a preferred form of embodiment of which is hereafter described with reference to the drawings which accompany and form part of the specifica- 'tion.

Of said drawings Fig. 1 is a transverse sectional view of the machine to which this invention is applied and shows the means for actuating the total izers and the transfer operating arms for 3 but with the operating parts in different positions.

Fig. 8 shows views in perspective of'the various parts of the transfer mechanism.

Fig. 9 illustrates a part of a transfer operating arm and associated complementary cams.

Fig. 10 is a section through the machine showing a suitable form of totalizer engaging mechanism.

Fig. 11 is a plan view of the transfer actuating mechanism, showing the relative positions of the cams for actuating the transfer pawls of the various denominational orders, and also showing the location of the totalizer actuating racks with respect to the transfer arms.

Fig. 12 is a sectional view taken on the line 12-12 of Fig. 11 showing the spiral arrangement of certain of the cam portions on the cam members.

Fig. 13 is an elevational view taken on the line 1313 of Fig. 11 showing the contour of one of the cams for the highest denominational order.

Fig. 14 is a collective view showing a pair of complementary cams for the lowest denominational order.

In the accompanying drawings the improvements are shown in connection with a machine of the general type fully shown in the pending applications for United States Letters Patent S. N. 263,125, filed November 19, 1918, and S. N. 283,720, filed Mar. 20, 1919, by Frederick L. Fuller as well as in the British Patents 135,465, 140,363, 157,823, 157,824 and 157,825, of July 11, 1921. Only such parts of the machine as are directly involved in the present invention are described herein, however, and reference should be made to the applications mentioned for any information desired as to the construction and operation of the remaining parts of-the machine.

Although the improvements have been shown applied to the machines shown and described in the above cited applications, it is to be understood that the improvements are capable of bein applied to or embodied in accounting mac ines generally without departing from the spirit of the invention.

Descri ed in general terms the illustrative machine comprises a series of manipulative devices such as keys 2O operable to actuate totalizing mechanism and mechanism I for entering the items on a record strip.

' The keys 20 are pivoted upon a rod 21 and resting upon the rear ends of the keys is a key coupler 22 pivoted at23. .When the outer ends of the keys are depressed the coupler is rocked clockwise about its pivot and its nose 24 enters the notches 25 in the rear ends of the keys. The construction and purpose of key coupler mechanism are well known in the art and need not be discussed herein.

As shown in Fig. 1, each key 20 is formed with an upwardly extending arm 26 carrying a stud 27 engaging a slot 28 in a plate 29 rigidly mounted in a frame 30 loosely mounted on the shaft 31. The slots 28 in plates 29 are graduated so that each of the keys will impart a different degree of movement to the frame'30. The plates are furthermore provided with arcuate slots 36 to permit the upward tilting of the cam plates withoutinterfering with the rollers on the remaining unoperated keys. Secured to the frame 30 is a segmental rack 301. It is to be understood that the keys 20 are arranged in banks and that for each bank there is a differentially actuated frame 30 and its corresponding segment rack. Each segment is always in mesh with a pinion rigid with its up a number which corresponds to the value of the key depressed.

Mounted below the item type carriers 32 and operable by the segmental racks herein- 40 before mentioned are two totalizers 33 and 34,

and other devices for operating various parts of the mechanism. The mechanism for effecting rotation of the shaft has not been shown or described in detail because it is so old and well known in the art.

7 In the Fuller application No. 283,720

, there are shown two specialkeys which are designated as. Clerks or Coupler lifting 6. keys indicated by reference numeral lOlfin corresponding item type wheel 32.and sets Connected to the key coupler is a double Figure 10. These keys have certain functions, one of which is to serve as a means whereby the key coupler 22 may be partially raised to what may be termed the coupling position, in which position other keys representing the nature and amount of the transaction may be engaged with the coupler so that a complete operation of all the keys so engaged with the coupler may be effected further by pressure applied to any engaged key. For further information relative to this construction reference may be had to the Fuller application just mentioned.

As shown more fully in the U. S. application S. N. 263,125 and in the British patents previously mentioned the totalizers A and B are pivotally mounted between side frames so that theirpinions are capable of being rocked into engagement with their respective actuators. The engagement of the totalizer A.with its actuator is under control of its corresponding Clerks or Coupler lifting key A while the totalizer B is placed in operation by means under control of its associated Clerks or Coupler lifting key B. The engagement of the totalizer pinions with their associated actuators is effected during the time that the Clerks or Coupler lifting key isdepressed to its coupling position. Other keys may now be engaged with the coupler and upon further depressing one or more of such other keys the pinions will be actuated an amount commensurate with the value of the key depressed. At the extreme end of the downward stroke, or, if desired, during the first part of the upward stroke of the keys, the selected totalizer is disengaged from the actuators and remains disengaged during the time the keys are returned to their normal position. This mechanism willbe briefly eX- plained herein in order that the present invention may be more fully understood. However, for a more detailed description and showing reference may be had to the British patents or application S. N. 263,125 which disclose one suitable form of this mechanism.

Referring particularly to Figure 10 of the drawings, there is pivotally mounted upon a transverse rod 84 a lever 85 carrying rollers co-operating with a pair of complementary cams 86 attached to the drivingshaft 35. The lever 85 is riveted to a bail member 87 having an integral forwardly extending arm 88 carrying a pin 89. The profile of the complementary cams is such that the bail 87 and the lever 88 are given an oscillating movement during each operation of the machine and this movement, as will be explained, will 91, which are guided at their upper ends by means of the shaft which supports the item printing wheels 32 and are slotted at their lower ends so as to engage the stud 89 carried by the lever 88. Each of the slides is formed at its upper end with a cam slot 92 engaging the shaft 43 of its associated totalizer. Due to the above construction it will be evident that when either slide'90 or 91 is reciprocated the cam slot 92 of that plate cooperating with thetotalizer wheel supporting shaft 43 will rock the associated totalizer frame about its pivot to bring its pinions into and out of engagement with the actuating racks.

Loosely mounted upon the pin 89 are two totalizer throwout plates 93 and 94 of identical form, the one associated with the slide for upper or A totalizer being indicated by reference character 93 and the one associated with slide 91 for the B or lower totalizer by reference character 94. Each cam plate 93, 94 is provided with a cam slot 95 co-operating with a stud 96 on the ass0- ciated control slide, so that by means of the connections just described the oscillatory movement given to the lever 88 will be imparted to the control slid-es 90, 91.

Loosely 'mounted upon a shaft 97 are a plurality of throw-out bails 98. each having integral therewith a downwardly extending arm 99 bifurcated to receive a pin 100 carried by its associated totalizer throw-out plate 93, 94. The clerks or totalizer selecting keys 101 are each provided with a pin 102 ccoperating with the cam edge 103 of a related I cam plate 104 loosely mounted upon the rod 97 and having a finger 105 engaging the under side of the corresponding throw-out bail 98.

When one of the totalizer selecting keys 101 is depressed to its coupler lifting position the shaft 36 will be driven, as previously described, and the complementary cams 86 acting upon the lever 85 will rock the bail 87 clockwise and through the arm 88 and connections to the totalizer engaging slides 90 and 91 will tend to move both slides downwardly so that the cam slots 92 of the latter, cooperating with the toalizer supporting shafts 43, would serve to rock both totalizer frames about their pivotal points to bring the totalizer pinions into engagement with the actuating racks. However,- the stud 102 of the selecting key101 being depressed, acting upon the cam edge 103 of its related plate 104 will, at the same time, cause the finger 105 to move its associated throw-out bail 98 upwardly and. through the connected arm 99 and pin 100, will rock the associated throw-out cam plate 95 rearwardly. Thus, at the same time that the arm 88 was tending to move both of the totalizer engagim slides 90 and 91 downwardly a throw-out cam plate, associated with one of the slides, was being forced rearwardly. The configuration of the cam slots 95 of the throw-out plates 93, 94 is such that when either plate is rocked about its pivotal point 89 it will, through the pin 96, tend to raise its associated totalizer con-.

trolling slide, but since, at this time, the lever 88 is tending to rock the pair of slides downwardly the result of these two tendencies of the keys the item will be entered in the selected totalizer, after whichthe totalizer engaging mechanism will again be effective, in the reverse direction, to disengage the selected totalizer and permit the return of the actuators without affecting the amount inserted in this totalizer.

The totalizers which are actuated during item entering operations are alike in all respects and'a description of one totalizer will suffice. Referring to Fig. 2 the totalizer is mounted in a frame 40 formed with ears 41 and 42 supporting a shaft 43. Each totalizer wheel 44, to which is attached its associated totalizer pinion 45 and transfer disc 46. is loosely mounted upon this shaft. Below and parallel to the shaft just mentioned is a, second shaft 47. This shaft carries the various devices for effecting transfers which will be explained more in detail hereinafter. In alignment with the shaft 47 are two bear ings 48 and 49 which are adapted to receive studs carried by the side frame which support the totalizer so that the totalizer frame may be oscillated bodily about the studs to move the totalizer pinions into or out ofengagement with the actuating segments.

In" the particular illustrative embodiment the totalizer comprises seven adding wheels 44 but this number may be altered to meet the requirements of a particular registering capacity Each adding wheel 44 and attached parts are practically duplicates and a description of one will suiiice for all.

As shown in Fig. 2, each adding wheel has secured thereto at its right a disk 46 carrying a trip tooth 50 (Figs. 3 and 4) and to the right of each disk is secured a totalizer pinion 45 carrying ten teeth. It will be evident that if, for example, the units adding wheel is moved during an item entering operation so that it passes from its nine to its zero position, a unitmust be transferred from the units to the tens wheel in order that the adding wheels will indicate the true amount. In general, provision must be made to transmit a unit to any higher denominational order each time that the next lower denominational order adding wheel passes,from its nine to its zero position. At times it is necessary to effect transfers by transfers, and to make the method clearer assume that 923 stands on the totalizer and 79 is to be added. At the end of the operation the totalizer Wheels should, of course, indicate the total 1002. The units pinion during the operation will be moved nine steps by its actuator through 0 to its 2 position and, of course, a unit should be carried to the tens wheel. The tens pinion, however, by the movement of its actuator and the carrying mechanism will have passed from the 2 position to its 0 position and it will be necessary to carry a unit to the hundreds totalizer wheel, and in the same manner since the hundred totalizer Wheel now stands at 0, a unit must be transferred to the thousands totalizer wheel in order to represent the correct total. In the present embodiment, if one should be transferred to a wheel of the next higher order while the same wheel is simultaneously being actuated by the actuators, a unit would be lost and incorrect total would result. For this reason it is necessary that some provision be made to prevent such loss of a unit which may be accomplished by having the transfers effected upon the upstroke of the keys, that is, when the totalizer pinions are out of mesh with the actuators. Furthermore, in order to effect transfers by transfers it is necessary to actuate the transfer mechanism successively, first the transfer mechanism between the units and tens order, then the transfer mechanism between the tens and hundreds order, etc.

/Vith the above in mind the method of effecting transfers between successive orders will now be explained. The mechanisms for effecting transfers between successive denominational orders are alike, and in view of this fact the transfer mechanism between the units and tens order only will be described;

As stated before, each totalizer wheel (Fig. 3) has attached to it at one side a transfer disk 46 which carries a trip tooth 50. Pivoted upon the shaft 47 is a trip pawl 51 (Figs. 2, 3, and 8) which is provided with a trip tooth 52 in the line of travel of the trip tooth 50 and adapted to engage therewith as the totalizer wheel 45 passes from its 9 to its 0 position. As shown more clearly in the perspective drawing of Fig. 8 the trip pawl 51 is furthermore provided with two notches 53 and 54 and a transverse lug 55. Adjacent to the trip pawl 51 is a slidably mounted transfer pawl 56 provided with a slot 57 engaging the shaft 47 (Figs. 3 and 8). One side of the transfer pawl 56 is provided with a stud 58 which is in alinement with the notches 53 and 54 of the trip pawl 51 and so arranged that when the transfer pawl is in its rearward position (Fig. 3) the stud 58 will engage the notch 53 and when the transfer pawl is forced forwardly to its transfer position, by means izer frame bears against a tail 60 formed on the trip pawl 51'and insures that the stud 58 co-operates with either the notch 53 or the notch 54 when the transfer pawl is moved from one position to another. The transfer pawl .has integral with its upper end, or otherwise secured or attached by any desirable means, a plate 61 which carries a transfer tooth 62 (Fig. 8) which is in the plane of the totalizer pinion 45 of the next higher denominational order, and will engage at times one of the teeth of the pinion to advance the totalizer pinion a unit when transfers are to be effected. The transfer pawl 56 is further provided at its forward end with a square shoulder 63 which normally (Fig. 3) contacts with the lug 55 of the trip pawl 51, and at its rear end it is provided with a slot or notch 64 in which operates a stud 65 carried by a transfer operating arm 66. r

The transfer operating arms 66 are loosely mounted upon the shaft 31 and are provided with rearward extensions 67 (Figs. 1, 9 and 11) carrying oppositely projecting anti-friction rollers 68 and 69 thereof. Upon the rotation shaft 35, which, as stated before, is

given a complete rotation upon each opera-- tion ofthe machine, is secured a series of complementary cams 70 and 71 the peripheries of which are in contact with their associated anti-friction rollers.

The sequence of operations of the transfer devices is illustrated in Fig. 3, 5, 6 and 7, Fig. 3, showing the normal position of the totalizer. When .a Clerks or Coupler lifting key is depressed to its coupling position the shaft 35 will be partially rotated to rotate the cams 70 and 71 in the direction of the arrow shown in Fig. 9. The rollers 69 will drop from their peak 72 of the cams 71 to the substantial ly concentric portions 73'thus; forcing their respective transfer arms 66 downwardly simultaneously so that their studs 65 will occupy the position shown in the upper dotted circle of 3. The totalizer engaging mechanism has meanwhile, been brought into operation so that the totalizer pinions are thrown into engagement with the segmental racks. From Fig. 3 it will be apparent that the forward ends of the transfer pawls 56 abut against the totalizer frame 40 and if the rearward ends of the transfer pawls were held by the studs 65 the totalizer pinions could not be thrown into mesh. For this reason the arms '66 are given a downward movement at the same time the totalizer pinions are thrown into mesh with their actuators, andwhen in this position the pinions may be rotated without any interference with their corresponding transfer teeth 62.

The totalizer pinions are shown in engagement with the segmental racks in Fig. 5. :If, for example, 1 has been standing upon the units totalizer wheel, and 9 is to be added thereto, the segmental rack will advance the units pinion wheel nine steps and in so doing the totalizer wheel will pass from nine to zero. The trip tooth 50 of the units totalizer wheel will now contact with the trip tooth 52 of the trip pawl and force the lug 55 against the shoulder 63 of the transfer pawl 56. The stud 58 attached to the transfer pawl will now be disengaged from the notch 53 and upon a further rotation of the trip pawl 51 the lug 55 will force the transfer pawl 56 forward until the shaft 47 contacts with the opposite end of the slot 57, as clearly seen in Fig. 5. It will be noted from this and other figures that the walls of slot 57, the upper wall of notch 64 and the sliding outer surface 561 of the pawl 56 are all in parallel relation to permit the sliding movement of the pawl just explained.

Upon a further movement of the disk 46 the trip tooth 50 will clear the trip tooth 52 of thetrip pawl 51 and by virtue of the tension stored in the spring 59 during the previous operation the trip pawl 51 will snap upwardly until the stud 58 of the transfer pawl 56 is engaged by the notch 54 of the trip pawl 51. It is of course evident that since the roller 69 has engaged the concentric portion of the cam 71 no rocking of the transfer arm 66 will result during the depression of the keys. The transfer device is now in a position to advance the tens Wheel a unit.

Referring to Figs. 11 to 14 it will be noted that the cams 70 and 71 for the transfer pawls of the various denominational orders are not identical in contour. The foremost cam A 70 shown in Fig. 12 and the cam 71 shown in Fig. 13 constitute the pair of cams for actuating the highest order transfer pawls, while the complementary cams shown in Fig. 14 constitute the cams for actuating the lowest denominational order pawls; the positions of the cams shown in Figs. 12 to 14 being those assumed when in normal position or the position assumed before the keys have been operated. It is apparent that the concentric portions 73 of all of the cams 71 are the same and consequently all of the rollers 69 will engage said portions 73 simultaneously thereby causing all of the transfer arms 66 to move downwardly at the same time, thus causing the studs 65 on said arms 66 to assume the position of the upper dotted circle shown in. Fig. 3. Again, when the cams are rotated through substantially 180 the cam portions 7 31 on all of the cams 71 will simultaneously engage their respective rollers 69 and thereby cause the arms 66 to move upwardly to the position shown in Fig. 3, thus permitting the totalizers to move out of engagement with their actuating racks. The totalizers are now in condition to receive transfers.= From Figs. 12 to 14 it is seen that the cam portions 74 on cams 70 and the corresponding notches 7 4 on cams 71 are arranged spirally about the shaft 35 so that transfers will be effected in the totalizers seriatim beginning with the lowest or tens order. Near the end of the down stroke of the keys or, if desired, during the first part of the up stroke, the rollers 69 will engage the cam portions 731 of cams 71 and rock the arms 66 upwardly, as aforesaid. Now, as the roller 68 for the tens order engages the high portion 74 of its cam 70 the corresponding notch 74 on cam 71 will be opposite its roller 69,

thus the transfer arm 66 for that order will be rocked downwardly to effect a transfer to the next higher order. It is clear that the arms for the hundreds, thousands, etc., groups, will follow successively, due to the spiral arrangement of the cam portions 74 andr'notches 7 4 on cams 70 and 71, respectively. As the transfer arm 66 begins its downward movement the stud 65 engages the lower edge of the slot 64 and rocks the rear end of the transfer pawl downwardly and then slides it bodily till the forward end 571 of the slot 57 engages the shaft 47 (Fig. 7), the trip tooth 62 having engaged one of the teeth of the totalizer pinions of the tens order to advance it a step. While the transfer pawl has been rocked the stud.58 carried thereby has, by virtue of the sliding movement imparted to the pawl while effecting the transfer, been disengaged from the notch 54 to occupy the notch 53. As the transfer arm 66 returns to its normal position the parts will again assume the position illustrated in Fig. 3.

In the illustrative embodiment, as is clearly shown in Fig. 11, six transfer arms are provided, but it is evident that if the regis tering capacity of the totalizer be altered at corresponding number of arms must be provided.

Fig. 4 illustrates the condition which exists when a transfer by a transfer is to be effected. To make this clearer assume that the tens wheel had been standing in its nine, position and one has been added to it the transfer operation just described. t is necessary, of course, that a unit be added to the hundreds totalizer wheel. As a unit is being transferred to the tens totalizer wheel (Fig. 4) the totalizer pinion will ad vance from its nine to its zero position and in so doing will trip the pawl 51 associated with the transfer mechanism between the tens and hundreds totalizer wheel and set the transfer pawl 56 to perform a carrying operation. During the return or up-stroke of the keys and after the transfer arm 66 associatedwith the transfer device between the units and tens order has been actuated, the transfer arm 66 associated with the transfer device between the tens and hundreds order will be actuated and advance the in the desire them to work improperly, and in order to eifect a mis-operation of the machine they have operated the machine rapidly and with a considerable degree of force and violence. In rapid operations the sequence of events occur almost instantly and if considerable force was utilized in operating the machine the transfer mechanism might impart such a rapid rotation to the totalizer wheels as to cause the totalizer to over-carry,. With a result that an incorrect registration would be indicated. To preclude the possibility of over-carrying the following mechanism is employed.

The plate 61 heretoforementioned is provided with a notch located forward of the transfer-tooth 62, as is readily seen from Fig. 8. As the transfer pawl 56 is being rocked downwardly by its operating arm 66 the transfer tooth 62 will engage a tooth of the transfer pinion wheel to advance the same (Fig. 7). It will be readily understood that if the transfer arm 66 was actuated rapidly the transfer tooth 62 would impart such a rapid rotation to the totalizer wheel as to over-carry. The notch 7 5 is so positioned with relation to the totalizer pinion as to en- 'gage one of the teeth as the pinion is being advanced by the transfer tooth 62, as is clear- 1y shown in Fig. 7, thus stopping the movement of the totalizer pinion and preventing the possibility of overthrow.

To prevent accidental displacement of the totalizer pinions from their set positions when disengaged from their actuators .as well as to assist in preventing over rotation of the totalizer wheels due to momentum there is provided a series of pawls 80. (Figs. 2, 7, and 8) The pawls are loosely pivoted upon the shaft 47 and urged rearwardly by springs 81 so that their wedge shaped ends 82 engage the interdental space of the corresponding tota lizer pinion.

From the foregoing description it will be evident that during each operation of the machine the transfer pawls 56 are actuated by their associated transfer operating arms irrespective whether transfers are to be of 'fected. When no transfers are to take place the rearward end of the transfer pawl will be rocked downwardly about the shaft 47 as a pivot and the tooth 62 will be carried rearwardly but will not engage the teeth of the pinion wheel.

Any suitable mechanism may be provided for resetting the totalizer pinions to zero, such as for example that shown in the Fuller application S. N. 263,125.

Although this type of transfer mechanism has been shown in connection with aparticular type of cash register it is not the desire to confine its application to this particular type of machine as it is readily evident that with minor changes it may be applied to other forms of cash registers, accounting machines and other devices'where transfer mechanisms are necessary and employed.

While the form of mechanism herein shown and describedis admirably adapted to fulfill the objects primarily stated it is to be understood that it is not intended to confine the invention to the one form of embodiment herein shown and described as it is susceptible of embodiment in various forms all coming within the scope of the claims which follow:

What I claim is z 1. In a machine of the class described, the combination comprising movable elements and a transfer tripping projection movable with one of said elements, of a transfer trip pawl actuatedby said projection, a transfer actuating pawl set by actuation of the trip pawl, a transfer operating arm, totalizer actuators, means for effecting a relative movement of the movable elements and actuators to efiect engagement and disengagement of the elements and actuators, a stud on the transfer operating arm for transmitting movements of the arm to the transfer actuating pawl, said stud being normally held in a position preventing the relative engaging movement of the actuators and elements and means for giving the transfer arm a preliminary movement to carry the stud out of said preventing position.

2. In a machine of the class described, the combination. of a totalizer comprising movable elements and a transfer tripping projection movable with one of said elements, of. a transfer trip pawl actuated by said projection, a transfer actuating pawl set by actuation of the trip pawl, a transfer operating arm, totalizer actuators, means for effecting a relative movement of the totalizer and actuators to effect engagement and disengagement of the totalizer and actuators, a stud on the transfer operating arm for transmitting movements of the arm to the transfer actuating pawl, said stud being normally held in a position preventing the relative engaging movement of the actuators and totalizer, means for giving the transfer arm a preliminary movement to carry the stud out of said preventing position, and for subsequently giving the transfer arm a further movement to actuate the transfer actuating pawl.

3. In a machine of the class described, a

main operating shaft, a pivotally mounted totalizer frame, a totalizer carried by said frame comprising wheels of successive denominationaLorder, pivoted actuators for operating said totalizer, transfer" elements carried by said totalizer frame and adapted to co-operate with said totalizer wheels, and

means co-operating with said main operating shaft for rocking said totalizer frame to engage the totalizer with said actuators and simultaneously and independently rocking said transfer elements to permit the rocking of said frame.

4. The combination of a totalizer wheel comprising a pinion, a transfer pawl adapted for rotary and longitudinal movement relative to a fixed shaft passing through said pawl, and invariably operated means directly acting upon said pawl for first rotating said pawl to engage its tooth with said pinion and then sliding said pawl to rotate said pinion.

5. In a machine of the class described having a totalizer comprising a series of denominational orders including a pinion, a transfer pawl adapted to cooperate with a pinion, said pawl being adapted for rotary and longitudinal movement when a transfer is to be effected and only rotary movement when no transfer is to be effected.

6. In a machine of the class described, a main operating shaft, a totalizer comprising a plurality of numeral wheels arranged in denominational order, a transfer pawl adapted to be given a rotary and longitudinal movement, means carried by a wheel of lower order for imparting a longitudinal movement to said pawl, and means'operated by the main shaft of the machine for giving said pawl a rotary and then a longitudinal movement.

7. In a totalizer including wheels of several denominational orders, a transfer pawl for carrying a unit from a wheel of lower or-. der to the wheel of next higher order comprising a tooth for engaging the wheel of higher order, said pawl having a supporting slot therein permiting rotary and longitudinal movement of said pawl and a notch in one end partially enclosed by a hook which is adapted to be engaged to give to said pawl both a rotary and longitudinal movement.

8. A transfer pawl adapted for rotary and sliding movement comprising an exterior sliding surface, an elongated supporting slot, and an engaging notch, said surface, slot and notch each having a side parallel to the direction of sliding movement of said pawl.

9. In a machine of the class described, a main operating shaft, a transfer pawl, a cam on said shaft, and means connecting said cam with said pawl whereby the cam will give to said pawl a preliminary rocking movement, a return movement and then a combined rocking and sliding movement for the purpose described, and means associated with said pawl for conditioning the same for the sliding movement imparted thereto by said cam.

10. In a machine of the class described, a main operating mechanism, a plurality of totalizers each comprising a series of wheels,

a pluralityof transfer pawls each of which is providedvwith an elongated slot and an engaging notch, a shaft embraced by said slot thereby adapting said pawls for rotary and sliding movement, there being one of said pawls for an order of each totalizer and a pivoted arm common to the totalizers carrying means cooperating with said notches for imparting both rotary and sliding movement to said pawls.

11. In a machine of the class described a totalizer comprising a plurality of registering elements of successive, orders, transfer pawls for operating said elements each under the control of the next lower order element, operating arms for actuating said pawls upon each operation of the machine, and a main operating means with connections for rocking said arms simultaneously a slight amount and subsequently rocking said arms singly and successively during one operation of the machine.

12. In a machine of the class described a totalizer comprising a plurality of registering elements of successive orders, transfer pawls for operating said elements each under the control of the next lower order element, operating arms for actuating said pawls upon each operation of the machine, and a main operating means with connections for rocking said arms simultaneously a slight amount to permit rocking of said totalizer, and subsequently rocking said arms singly and successively for effecting transfers into higher orders during one operation of the machine.

13. In a machine of the class described a totalizer comprising a plurality of registe ing elements of successive orders, actuators for said elements, transfer pawls operatively associated with said elements, operating arms for said transfer pawls, a maindrive shaft, connections from said shaft for moving said totalizer into engagement with the actuators, and means operated by said shaft for simultaneously rocking all of said arms when the totalizer is being moved and at another time for rocking said arms successively for efl'ect ing transfers.

14:. In a machine of the class described, a totalizer pinion and a transfer pawl adapted to impart a single step of movement thereto comprising an operating tooth, supporting means permitting rotary and sliding movement, a hook whereby said pawl may be given a rotary and sliding movement to rotate said pinion and a locking notch adjacent said operating tooth adapted to positively arrest the movement of said pinion after the latter has moved one step.

15. In a machine of the class described, an operating mechanism, a totalizer comprising a series of denominational wheels, a normally inactive transfer pawl for one of said wheels, means for rendering said pawl active, and connections from said operating mechanism to give to said transfer pawl a rotary movement or a combined rotary and longitudinal movement according to whether the pawl is inactive or active.

16. In a machine of the class described, a main operating shaft, a movable totalizer frame, a totalizer carried by said frame,act11- ators for operating said totalizer, transferring means cooperating with said totalizer and normally in a position preventing engagement of said totalizer with said actuators, alid means cooperating with said main operating shaft for shifting said totalizer frame to engage the totalizer with said actuators and simultaneously removing said transferring means from said engagement 15 preventing position. r

17. In a machine of the class described, a

' totali-zer including wheels'of several denominational orders, a transfer pawl for carrying from a wheel of lower order to the Wheel of-next higher order comprising a tooth for engaging the wheel of higher order, said pawl having a supporting slottherein permitting rotary and longitudinal movement of said pawl and a notch in one end partially enclosed by-a hook, and a member movable upon each operation of the machine and engagelable with said hook for operating said paw In witness whereof I have signed my name hereto this 13th day of Dec, 1922. 4

CHARLES W. GREEN. 

